Hang up. I called back (blocking my number of course) and got the message "The number you have dialed is not in service". My call blocker to the rescue again.
If you're not part of the solution, you're part of the problem.
Calls often, asking for a Mr or Mrs "name". There was never a Mr. by that name living here, and the last name was changed appx 8 years ago. Asked who was calling and they hung up